Optical display device

Abstract

An optical display device such as an emblem mounted on an automotive vehicle is disclosed which is simple in structure and displays a display pattern in a silver metallic color by daylight. The interior of the device is kept invisible in the daytime, whereas the pattern is displayed in any desired color in a uniform manner in the nighttime.

What is claimed is: 
     
       1. An optical display device comprising: a printed circuit board;   light sources mounted on said printed circuit board;   a light transmissive member having at a bottom a light reflective surface for reflecting light upwardly, cavities into which said light sources are inserted being formed in said light transmissive member, said light transmissive member being made of light transmissive material;   a light dispersing plate provided on an upper surface side of said light transmissive member for dispersing light from the light sources;   a color sheet provided on an upper surface side of said light dispersing plate;   a half mirror provided on an upper surface side of said color sheet; and   a light display member provided on an upper surface side of said half mirror for displaying a predetermined pattern.   
     
     
       2. An optical display device comprising: a printed circuit board;   light sources mounted on said printed circuit board;   a light transmissive member having at an upper surface a light dispersing area and at a bottom a light reflective surface for reflecting light upwardly, cavities into which said light source are inserted being formed in said light transmissive member, said light transmissive member being made of light transmissive material;   a color sheet provided on an upper surface side of said light transmissive member;   a half mirror provided on an upper surface side of said color sheet; and   a light display member provided on an upper surface side of said half mirror for displaying a predetermined pattern.